releases/3.5.7/drm-destroy-the-planes-prior-to-destroying-the-associated-crtc.patch

From 3184009c36da413724f283e3c7ac9cc60c623bc4 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 17 Sep 2012 09:38:03 +0000
Subject: drm: Destroy the planes prior to destroying the associated CRTC

From: Chris Wilson <chris@chris-wilson.co.uk>

commit 3184009c36da413724f283e3c7ac9cc60c623bc4 upstream.

As during the plane cleanup, we wish to disable the hardware and
so may modify state on the associated CRTC, that CRTC must continue to
exist until we are finished.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54101
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: lu hua <huax.lu@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/drm_crtc.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1034,15 +1034,15 @@ void drm_mode_config_cleanup(struct drm_
 		fb->funcs->destroy(fb);
 	}
 
-	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
-		crtc->funcs->destroy(crtc);
-	}
-
 	list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
 				 head) {
 		plane->funcs->destroy(plane);
 	}
 
+	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+		crtc->funcs->destroy(crtc);
+	}
+
 	idr_remove_all(&dev->mode_config.crtc_idr);
 	idr_destroy(&dev->mode_config.crtc_idr);
 }